Liberian authorities are urging Ebola survivors to refrain from unprotected sex beyond the recommended 90 days, after the country's first Ebola death in more than a month.

The female patient who died Friday was married to a man who had the disease but survived.

Officials fear she may have gotten sick through sexual transmission.

The World Heath Organization recommends that Ebola survivors refrain from sex for 90 days. But Liberian officials urge former patents to at least use condoms beyond that time, until more information is known.

Liberia had been hit hardest by the Ebola epidemic. The 44-year-old woman was its first confirmed case in more than a month.